Plant light



FIG. 1 is a perspective view of a plant light showing my new design;

FIG. 2 is a front view thereof on an enlarged scale;

FIG. 3 is a side view thereof on an enlarged scale, the other side being identical thereto;

FIG. 4 is a rear view thereof on an enlarged scale;

FIG. 5 is a top view thereof on an enlarged scale; and

FIG. 6 is a bottom view thereof on an enlarged scale. 

The ornamental design for a plant light, substantially as shown and described. 